diff --git a/pkg/models/user.go b/pkg/models/user.go
index bbc59f8d..27fe28f1 100644
--- a/pkg/models/user.go
+++ b/pkg/models/user.go
@@ -263,6 +263,12 @@ func (u *User) CanEditTransactionByTransactionTime(transactionTime int64, utcOff
 
 // ToUserBasicInfo returns a user basic view-object according to database model
 func (u *User) ToUserBasicInfo(avatarProvider core.UserAvatarProviderType, avatarUrl string) *UserBasicInfo {
+	fiscalYearStart := u.FiscalYearStart
+
+	if fiscalYearStart < core.FISCAL_YEAR_START_MIN || fiscalYearStart > core.FISCAL_YEAR_START_MAX {
+		fiscalYearStart = core.FISCAL_YEAR_START_DEFAULT
+	}
+
 	return &UserBasicInfo{
 		Username:              u.Username,
 		Email:                 u.Email,
@@ -274,7 +280,7 @@ func (u *User) ToUserBasicInfo(avatarProvider core.UserAvatarProviderType, avata
 		Language:              u.Language,
 		DefaultCurrency:       u.DefaultCurrency,
 		FirstDayOfWeek:        u.FirstDayOfWeek,
-		FiscalYearStart:       u.FiscalYearStart,
+		FiscalYearStart:       fiscalYearStart,
 		LongDateFormat:        u.LongDateFormat,
 		ShortDateFormat:       u.ShortDateFormat,
 		LongTimeFormat:        u.LongTimeFormat,
diff --git a/src/stores/user.ts b/src/stores/user.ts
index 98eeccbf..eb25ff3d 100644
--- a/src/stores/user.ts
+++ b/src/stores/user.ts
@@ -4,6 +4,7 @@ import { defineStore } from 'pinia';
 import { useSettingsStore } from './setting.ts';
 
 import { WeekDay } from '@/core/datetime.ts';
+import { FiscalYearStart } from '@/core/fiscalyear.ts';
 
 import {
     type UserBasicInfo,
@@ -68,7 +69,7 @@ export const useUserStore = defineStore('user', () => {
 
     const currentUserFiscalYearStart = computed<number>(() => {
         const userInfo = currentUserBasicInfo.value || EMPTY_USER_BASIC_INFO;
-        return userInfo.fiscalYearStart;
+        return isNumber(userInfo.fiscalYearStart) && FiscalYearStart.valueOf(userInfo.fiscalYearStart) ? userInfo.fiscalYearStart : EMPTY_USER_BASIC_INFO.fiscalYearStart;
     });
 
     const currentUserLongDateFormat = computed<number>(() => {